The MC cable and the fittings need to be listed for use in a damp or wet location.(See 330.10(11)
Chris
Any connector listed for MC will be suitable for any location MC cable is listed for. With the exception of PVC coated MC (TECK), MC cable is listed for dry locations only.
Can you give me to Code reference to back that, please ?
In wet locations where any of the following conditions are met:
a. The metallic covering is impervious to moisture
b. A lead sheath or moisture impervious jacket is provided under the metal covering.
c. The insulated conductors under the metallic covering are listed for use in wet locations and a corrosion-resistant jacket is provided over the metallic sheath.